I have gone through the Nordost family of cables, and my observations are that you get the same sound signature, only improved and refined, as you move up through the line. Forgive me, but I'm confused by your post. Which Transparent cables (and where in your audio chain) are they being used. Which have you already upgraded, and what upgrades have you definitely planned, and what changes are you still not sure about. I have heard good things about Transparent cables. Sorry that I don't have the experience to advise you, but I would like to learn more about their cables. Thanks for your post...and good luck!
Now for a word of caution...Didactically will give you the standard "true to the original", and "masters of coloration", as well as just plain incomprehensible audio psychobabble until you want to vomit. And of course, the inevitable link to his Guru, Siegfried Linkwitz. There is some interesting info here, but Didactically seems to think that his approach is THE ONLY VIABLE method of high end audio. Apparently, he enjoys his system, but ravages through the Agon posts as if he were in the "Blues Brothers" movie and he also is on a "mission from God"!!
Note that his reference standard for "true to the original" is a $100- pair of Shure earbuds, with 3 distinct frequency peaks (according to the information on the Siegfried Linkwitz website). In addition, Siegfried Linkwitz uses a Sony TCD-D3 Digital Audio Tape Walkman for his master tapes (no super-bit mapping either!) Take this into consideration when judging his advice!